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It has been reported that the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed witha standard deviation of $175 per hour. (Round the value of z to 2 decimal places, e.g. 458.75.) (a) What cost would 20% of the operating costs be less than? $ (b) What cost would 65% of the operating costs be more than? $ (c) What cost would be more than 85% of operating costs? $

It has been reported that the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed witha standard deviation of $175 per hour. (Round the value of z to 2 decimal places, e.g. 458.75.) (a) What cost would 20% of the operating costs be less than? $ (b) What cost would 65% of the operating costs be more than? $ (c) What cost would be more than 85% of operating costs? $

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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It has been reported that the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed with a standard deviation of $175 per hour. (Round the value of z to 2 decimal places, e.g. 458.75.) (a) What cost would 20% of the operating costs be less than? $ (b) What cost would 65% of the operating costs be more than? $ (c) What cost would be more than 85% of operating costs? $
Transcribed Image Text:It has been reported that the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed with a standard deviation of $175 per hour. (Round the value of z to 2 decimal places, e.g. 458.75.) (a) What cost would 20% of the operating costs be less than? $ (b) What cost would 65% of the operating costs be more than? $ (c) What cost would be more than 85% of operating costs? $
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